JIAN BOLAND 2 Way Wireless Intercom System for Home-Portable Voice Intercom Doorbell with 2000mAh Rechargeable Battery,1000M Long Range Intercom Systems for Home

Wireless Voice Intercom Doorbell: 2NI1 doorbell, 2 indoor units also available as portable radios, effective range 1KM/3200FT in open environment, strong and stable wireless signal will not let you miss any visitors, 3 levels of adjustable volume (60db-90db). New upgrade: Wireless doorbell with built-in 2000mAh battery, outdoor unit - rechargeable directly from DC port. Outdoor wireless doorbell can be used for about 6 months, indoor unit - rechargeable via base. 2-Way Voice Intercom: Intercom Doorbell-Pressing the "TALK" button directly between the two indoor units allows for voice intercom, a feature that conveniently facilitates the care of families with elderly and sick people, can also be used as a family voice intercom system. Outdoor wireless doorbells with sealed waterproof design, wet or rainy days will not affect the work of wireless doorbell (can't be submerged in water) Two types of mounting: stick-on and screw-in. Depending on the frequency of use, you may need to charge the indoor unit once every 3-5 days, and it is recommended to return it to the charging station after use; charging is possible at any time., Manufacturer: JIAN BOLAND